Lights

• Use shadow mapping texture for shadow from lights

• Use 1 texture (8192 x 6144)

Light	Size	Num Limit
Directional Light	1024 x 1024	8
Spot Light	512 x 512	32
Point Light	128 x 128	32
Deferred Light	None	INF

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1. Directional Light

• Use Orthogonal matrix

• Texture size per 1 light = 1024 x 1024

• Maximum light Num = 8

• Not use frustum light culling

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2. Spot Light

• Use Perspective matrix

• Texture size per 1 light = 512 x 512

• Maximum light Num = 32

• Use frustum light culling if light is small

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3. Point Light

• Use Perspective matrix

• Texture size per 1 light = 128 x 128

• Use 6 Texture per 1 light ( Up, Bottom, Left, Right, Front, Back )

• Maximum light Num = 32

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4. Deferred Light

• Use Deferred Light render

• Calculate light with G-Buffer Info ( Pixel's Position, color, normal <- Light Color, intensity )

• No need shadow texture

• No light Num limit